Annals of Mathematics
HYLARANA GUENTHERI
A Simple Intrinsic Proof of the Gauss-Bonnet Formula for Closed Riemannian Manifolds Author(s): Shiing-Shen Chern加尔文教
Source: Annals of Mathematics, Second Series, Vol. 45, No. 4 (Oct., 1944), pp. 747-752
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